A compound having the following formula (II) or a pharmacologically acceptable salt thereof is used as a P2X4 receptor antagonist : wherein each of R11 and R12 is hydrogen, C1-8 alkyl or the like; R13 is hydrogen, C1-8 alkyl or the like; R14 is hydrogen, C1-8 alkyl, C1-8 alkoxy, C1-8 alkyl having 1-3 halogens, C1-8 hydroxyalkyl, halogen, hydroxyl, nitro, cyano, amino, C1-8 alkylamino, benzenesulfonylamino optionally having a substituent, a heterocyclic group op- tionally having a substituent or the like; and the condensed ring consisting of W1 and the neighbor- ing benzene ring is naphthalene, tetrahydronaphthalene, or indan ring.